llama.cpp builds b1886 through b7445 contain a null pointer dereference vulnerability in the LLaMA-Android JNI wrapper where the bench_1model() function fails to validate the model context pointer before dereferencing it. Attackers can supply a malicious, corrupt, or truncated model file to trigger a null context condition, causing a SIGSEGV crash that terminates the Android application process and results in denial of service.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
ggml-org:llama.cpp
References 4
https://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patches
disclosure@vulncheck.com
https://github.com/ggml-org/llama.cpp/commit/5c0d18881e0e9794c96b2602736b758bac…
disclosure@vulncheck.com
https://github.com/ggml-org/llama.cpp/releases/tag/b7446
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/llama-cpp-b1886-b7445-null-pointer-derefer…
disclosure@vulncheck.com